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Dark Matter Halos and the Main Sequence of Starforming Galaxies

Published online by Cambridge University Press:  17 August 2016

Hervé Aussel ,
Sébastien Peirani  and
Laurent Vigroux
Hervé Aussel
Affiliation:
Laboratoire AIM Paris-Saclay CE-Saclay, Bat 709, 91919 Gif-sur-Yvette, France email: herve.aussel@cea.fr
Sébastien Peirani
Affiliation:
Institut d'Astrophysique de Paris 98 bis boulevard Arago, 75014 Paris, France
Laurent Vigroux
Affiliation:
Laboratoire AIM Paris-Saclay CE-Saclay, Bat 709, 91919 Gif-sur-Yvette, France email: herve.aussel@cea.fr Institut d'Astrophysique de Paris 98 bis boulevard Arago, 75014 Paris, France
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Abstract

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We investigate why hydrodynamical numerical simulations have difficulties (Weinmann et al. 2011) in reproducing the Main Sequence (MS) of star-forming galaxies, i.e. the fact that galaxies forming stars lie on a tight power law sequence in the stellar mass (M*), star formation rate (SFR) plane (Schreiber et al. 2015). Instead of trying to improve the agreement of simulations with the observations by modifying the subgrid recipes of baryons, we take here a step back to check whether the accretion onto dark matter halos is consistent with the existence of the main sequence of star forming galaxies.

Keywords

galaxies: evolutiondark matter
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S319: Galaxies at High Redshift and Their Evolution Over Cosmic Time , August 2015 , pp. 1
Copyright
Copyright © International Astronomical Union 2016 

References

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